three-dimensional perception in virtual reality settings

Many cues for 3D sensation come from interaction among things. Key attributes of these interactions are overlap, scale, and parallax. Objects that overlap over other objects are seen to be closer. Objects thought to be similar in magnitude but seeming bigger are perceived as nearer and things that grow in apparent size are seen to be travelling nearer. Objects that shift a longer distance in comparison with other things when the viewer's head moves are seen to be closer. Related technologies at Virtual Reality may be of use.

Not all interaction between people and computers is of sufficient perceptual impact to be virtual reality. The communication also should be immersive. This does not mean that the environment must be 100% artificially constructed and devoid of any real world objects. It does suggest that the human must be sufficiently actively involved in a computer generated or improved setting that the artificially-artificially constructed elements dominate the human's consciousness. Exactly how much of a human's field of vision, breath of hearing, sense of touch, and different senses must be engaged to reach immersion is challenging to quantify and the criteria may increase with advancements in applied science. Virtual Tours Grand Prairie, Texas also deals with these concepts.

Discussion of such matters at Holographic Virtual Reality .